pepteed
Research5 min readUpdated May 2026

Epithalon: the telomerase tetrapeptide

Epithalon (also written epitalon) is a short peptide widely referenced in longevity and cellular-aging research. This primer describes what it is and how it is handled, with no therapeutic or dosing claims.

What it is

Epithalon is a synthetic tetrapeptide — four amino acids (Ala-Glu-Asp-Gly). It is often described in the literature in relation to telomere and telomerase research. It is produced synthetically and supplied lyophilised.

Why it is studied

Epithalon is used as a tool compound in preclinical and in-vitro aging-related models. The conclusions belong to those studies; nothing here is a statement about human effects.

Handling notes

  • Supplied lyophilised; reconstitute gently.
  • Store the dry solid sealed, cold and dark.
  • Refrigerate after reconstitution and aliquot for repeated use.

For in-vitro research use only. Not for human or veterinary use.

Mentioned in the catalog
For in-vitro research use only. This guide covers general laboratory handling and is not medical, clinical or dosing advice.